@'''
 One
 '''[key: value]
@'''
 One
 ''' [key: value]
@'''
 One
 '''[()]
@'''
 One
 ''' [()]
@'''
 One
 '''[matched_expression]
@'''
 One
 ''' [matched_expression]
@'''
 One
 '''[matched_expression,]
@'''
 One
 ''' [matched_expression,]
